baber/WOPTO huggingface dataset:
Patent GB-2102972-A (GB)
Title: Capacitor voltage transformers
Inventor: NEWBOULD ADRIAN ORTON
IPC: G01R15/06
Filed: 1982-07-21
Abstract: A capacitor voltage transformer (CVT) comprising: a chain of capacitors (C1, C2, C3) adapted for connection across a voltage to be monitored; an electromagnetic transformer unit (3) connected across a part (C2) of the capacitor chain; and means (OP, 7) for injecting in series with the electromagnetic transformer unit output a voltage equal and opposite to the error in the electromagnetic transformer unit output during transient conditions, thereby to remove such errors from the CVT output. <IMAGE>
Patent GB-2105625-A (GB)
Title: Method and machine for crown-shaving the tooth flanks of a toothed workpiece
Inventor: FISCHER HEINRICH
IPC: B23F23/12
Filed: 1982-07-26
Abstract: In a gear-shaving machine with a toothed workpiece 16 held non- displaceably and in mesh with a shaving wheel 9, a tool carrier 5, 15 holding the shaving wheel performs a reciprocating feed movement, for which purpose it is guided in a part 4 which is pivotable about an axis 11 lying transverse to the feed direction 8 and guided by a guide bar 21 in a slotted guide 24 of a stationary part 3. In order to produce crowned tooth flanks on the workpiece 16 the distance between the guide bar 21 and the tool carrier 5 is altered as a function of the cycle of the reciprocating feed movement, and the guide bar is held in the pivotable part 4 constantly parallel to the guide 13 of the tool carrier 5. <IMAGE>
Patent GB-2117559-A (GB)
Title: Method of manufacturing a lamp
Inventor: HANSLER RICHARD LOWELL
IPC: C03B23/045
Filed: 1982-09-29
Abstract: A metal halide discharge lamp is manufactured on a horizontal glass blowing lathe which is indexed by a turn-table through angularly spaced work stations. Initially, a length of quartz tubing is formed into a lamp body having an enlarged bulbous midportion defining an arc chamber with tubular necks projecting in opposite directions. Thereafter, the lamp electrodes and other components are inserted, precision in determining the interelectrode gap being achieved by maintaining the initial seizure of the quartz tubing in the headstock of the lathe and referencing bulb formation and electrode insertion to the circular path described by the headstock. <IMAGE>
Patent GB-2107080-A (GB)
Title: Improvements relating to microtomes
Inventor: BUTCHER JOHN KINGSLEY
IPC: G01N1/06
Filed: 1982-09-30
Abstract: A microtome comprises a guide plate 14 disposed so that a slice cut off by the knife is guided, without curling, between the said knife and plate and a unit for adjustment of the height and angle of the plate in relation to the knife. The means for height adjustment may permit rotational float of the plate. Means for adjustment of height parallel to the knife may be self-compensating for wear. It preferably has integral spacing strips 14(9) predetermining a gap between the plate and knife. The guide plate may be mounted replaceably in the upper part of a clothes-peg type of holder 10 which is connected to the lower part thereof by a pivot 25 at one end and by tension spring means housed in the said parts at the other end. For adjustment of the plate with respect to parallelism with the edge of the knife, it may be adjustable about the said pivot by means of a cam rotated by an adjustment wheel 13. The plate holder may be carried upon a stem received in a bore in a body which is rockable about a pivot urged in one direction by a compression spring accommodated in cavities in the said body and a housing. For angular adjustment of the plate, the said body bears against the balled head of an abutment pin and can be displaced angularly by means of a knob having screw-thread engagement in a bush fast in the housing. <IMAGE>
Patent GB-2118613-A (GB)
Title: Metal band for locking tube joints
Inventor: BELLAZZI EMILIO
IPC: F16L33/02
Filed: 1983-02-28
Abstract: A metal band of circular form for locking a joint between two tubes comprises from one end to the other a curved part, an outward fold (2) which develops along a non-radial axis, a second curved part (1), a substantially radial fold (3), a resilient straight part (4) and a hooked extremity (5, 5A), engageable with the fold (2) to secure the band. The non-hooked end may be reinforced by ribs. <IMAGE>
Patent GB-2116179-A (GB)
Title: 1,2,4-triazine and pyrazine derivatives
Inventor: WONG DAVID TAIWAI
IPC: A61K31/33
Filed: 1983-03-03
Abstract: This invention relates to certain amino-5,6-diaryl-1,2,4--triazines and -pyrazines useful as activators of GABA and benzodiazepine binding.
Patent GB-2117691-A (GB)
Title: Process for the diffusion bonding of aluminium based materials
Inventor: PARTRIDGE PETER GEORGE
IPC: B23K20/233
Filed: 1983-03-28
Abstract: A process and apparatus for the diffusion bonding of aluminium based materials are described. The process comprises the steps;     i removing the oxide film by an ion bombardment technique, ii depositing a coating of a suitable metal wherein at least the initial stages of the coating deposition is carried out by an ion plating method, iii diffusion bonding the cleaned and coated aluminium alloy components together and wherein there is no time interval between the completion of step (i) and the commencement of step (ii). A suitable metal for the deposited coating is silver applied in the range 10 to 1000nm thickness. A plating process is described with reference to Fig. 1. In Fig. 2, diffusion bonding of specimens 14 is effected in an argon atmosphere in an electrical resistance heated furnace 40. A subsequent heat treatment solution treats the alloy and diffuses silver away from the bond interface. <IMAGE>
Patent GB-2122313-A (GB)
Title: Improvements in or relating to valves
Inventor: SPILS RICHARD W
IPC: F16K1/54
Filed: 1983-05-17
Abstract: A multiple stage valve (1) is described. The valve comprises a valve member (3) and a valve seat (2) each formed with a plurality of steps (3a to 3e and 2a to 3e) increasing in diameter in an upstream direction from the valve, the steps being configured so that a straight line can be drawn between opposed steps in all open positions of the valve and so that the flow passage varies in width, being narrowest in the regions of opposed steps. The valve member is pressure balanced in the closed position. <IMAGE>
Patent GB-2123065-A (GB)
Title: Internally-illuminable bollards
Inventor: BAYNES KEITH WILLIAM
IPC: E01F9/615
Filed: 1983-06-24
Abstract: A bollard is provided that has a base (1) set in the ground and containing a light source (4), a hollow part (2) having one or more light transmitting panels (10), which may bear traffic signs, and a reflective body (11) within the post for directing light from the source (4) onto and through the or each panel (10). The base is covered by a light-transmitting plate (5). The post is easily and cheaply replaced if it is hit by a vehicle and the light-transmitting panels (9) are well illuminated despite the remoteness of the light sources. <IMAGE>
Patent GB-2143787-A (GB)
Title: Pneumatic conveying system
Inventor: RAINER JEFFERY JAMES
IPC: B65G53/24
Filed: 1983-07-14
Abstract: In a pneumatic conveying system, for a hospital, bags of soiled laundry and of refuse are conveyed from inlet stations (6 and 7) on different floors through laundry chutes (1) and refuse chutes (2) and a conveying pipe (5) to their respective destinations; a laundry bag collector (3) and an incinerator (41). The conveying pipe (5) is common to both kinds of bags and includes a diverter (25) enclosed within the laundry bag collector (3) which either directs laundry bags out of the pipe (5) and into the collector (3) or allows refuse bags to pass through the laundry bag collector (3) along the pipe (5) to the incinerator (41). <IMAGE>
Patent GB-2127834-A (GB)
Title: A continuous process for making solid, free-flowing water dispersible pva-aldehyde reaction product
Inventor: BLOUIN JOHN JOSEPH
IPC: B01J19/28
Filed: 1983-09-12
Abstract: A polyvinyl alcohol-aldehyde reaction product is produced continuously in a rotating contactor by contacting the polyvinyl alcohol with the aldehyde in an acidic aqueous salt solution. The product can be dried and then sieved to remove oversize particles. A preferred aldehyde is formaldehyde which reacts with the polyvinyl alcohol to produce a reaction product that can be used as a fluid loss control agent in oil fields.
Patent GB-2147023-A (GB)
Title: Wall tie
Inventor: ECCLESHALL DAVID JOHN
IPC: E04B1/41
Filed: 1983-09-27
Abstract: A wall tie for use in a timber-framed building comprises a metal strip (18) which is secured to the timer-frame and which has tongues (19,20) which can be bent from the strip to lie between courses of a masonry outer leaf (11). The inner leaf (10) of the wall is built first with the tongues in the position shown for tongue 19 and the tongues are bent into the position shown for tongue 20 as the outer masonry leaf (11) is constructed. <IMAGE>
Patent GB-2128452-A (GB)
Title: Cordless telephone subset
Inventor: HOFGEN GUNTER
IPC: H04M1/72511
Filed: 1983-09-29
Abstract: The subset consists of a stationary part and a movable part (1, 2), with the latter containing all operating controls. Signal transmission between the parts is effected by alternately transmitted (TDM) pulse groups which modulate a carrier frequency (F, F<+>). The carrier frequency is additionally swept with a constant sweep width. The sweep frequency (fi) (e.g. sawtooth wave) is adjustable, so that several telephone subsets can be operated at the same carrier frequency but with different sweep frequencies, within the same range of effectiveness. The operating controls on the part 2 include a dialling keyboard 21. <IMAGE>
Patent GB-2129046-A (GB)
Title: Door catch
Inventor: ARNOLD JOSEPH WILLIAM
IPC: E05C19/06
Filed: 1983-10-27
Abstract: A catch member 5 and an attachment portion 1 are formed as an integral polypropylene moulding including an integral hinge 6 between the catch member and the attachment portion. The catch member includes an operating lever 16 which can be engaged by a finger inserted through a hole 3 when the catch is fitted to the inside of a door 2 and also a projection 18 constituting a leaf spring of which the free end engages a portion 19 of the attachment portion so as to resist turning movement of the catch member about the hinge. A curved cover portion 22 extends over the operating lever to protect the lever 16 and to guide a finger into contact with it. Figure 1 shows the catch member 5 in the closed position in engagement with an abutment 9. In the open position of the door 2 projections 26 on the catch member engage the inner surface of the door and prevent the catch member turning in an anticlockwise direction. <IMAGE>
Patent GB-2131994-A (GB)
Title: Inductive loop sensors
Inventor: DULEY RICHARD KEITH
IPC: G08G1/042
Filed: 1983-11-29
Abstract: A vehicle presence detection system in which an inductive sensor loop is the frequency-determining element of the tuned circuit of a loop oscillator, wherein discrimination against variations in inductance due to environmental changes is achieved by comparing detect and tracking reference numbers with a sample number that is a function of the oscillator frequency and updating each reference number repeatedly at real time intervals independent of loop oscillator frequency. The current sample number is compared with either the tracking reference or the detect reference according to whether or not the system is indicating the presence of a vehicle. In the case of the tracking reference, if the difference between it and the sample is no greater than a threshold value, each reference is updated by repeatedly incrementing or decrementing it by a predetermined amount for a number of times determined by the time that has elapsed since the last comparison cycle, but if the difference is greater than the threshold, indicating a vehicle movement, the tracking reference is immediately made substantially equal to the sample in one step. Both the threshold values and the predetermined amounts of increment or decrement may be different for different directions of change.
Patent GB-2132203-A (GB)
Title: Substituted imidazopyrimidines, -pyrazines, and -triazines
Inventor: SPITZER WAYNE ALFRED
IPC: C07C45/71
Filed: 1983-12-21
Abstract: Compounds having the formula (I) <CHEM> and their pharmaceutically acceptable salts, wherein one or two of A1, A2, A3, and A4 is N, and the remaining A1, A2, A3, and A4 are CH, provided that if A4 is N, then one of A1, A2, and A3 is also N, and provided that one of A1, A2, and A3 may be CX where X is halo; and each of R1, R2, and R3 is independently hydrogen, C1-C4 alkyl, C1-C4, alkoxy, allyloxy, benzyloxy, (C1-C4 alkyl) thio, (C1-C4 alkyl) sulfinyl, (C1-C4 alkyl)sulfonyl, hydroxy, halo, cyano, nitro, amino, mono- or di-(C1-C4alkyl)amino, trifluoromethyl, or Z-Q-substituted C1-C4 alkoxy, wherein Q is oxygen, sulfur, sulfinyl, sulfonyl, or a bond, and Z is C1-C4 alkyl, phenyl or phenyl substituted with halo, C1-C4 alkyl, C1-C4 alkoxy, hydroxy, nitro, amino, C1-C4 alkylthio, C1-C4 alkylsulfinyl, or C1-C4 alkylsulfonyl are ionotropic agents or intermediates thereto.
Patent GB-2137852-A (GB)
Title: Receivers Suitable for Use in Remotely-Operable Switching Devices and Data Transmission Systems
Inventor: DOREY HOWARD
IPC: H04B3/54
Filed: 1984-02-13
Abstract: A radio-controlled switch operated by carrier-borne digital signals includes a radio receiver capable of operating with a carrier having either of two different predetermined frequencies. The receiver includes a first mixer for subtracting a first local oscillator frequency from the input signal frequency to form a first IF signal, which therefore also has either of two predetermined frequencies. A second local oscillator frequency, midway between the two possible frequencies of the first IF signal, is then mixed with the first IF signal to form a second IF signal. The frequency of the second IF signal is therefore common to both possible carrier frequencies. A phase-locked loop is used to lock the second IF signal to a VCO which produces the first and second local oscillator frequencies. <IMAGE>
Patent GB-2148676-A (GB)
Title: Ceramic heater having temperature sensor integrally formed thereon
Inventor: LAWRENCE WILLIAM A
IPC: H05B3/28
Filed: 1984-03-06
Abstract: A unified ceramic heater and heat sensor 10 has a burnt ceramic body 12 with a resistance heating element 14 located in and completely encased within the body. A pair of terminals 20, 22 connects to the resistance heating element to provide leads to power the resistance element. A temperature sensor element 26 is located upon and integrally attached to the burnt ceramic body. It is placed on the body in association with the heating element. The temperature sensing element is formed of an electrically conducting material such as platinum or copper, which exhibits a variable electrical resistance in response to variations of its temperature. A pair of sensor element terminals 32, 34 are connected to the sensor element for connecting the sensor element to an appropriate electrical appliance for measuring its resistance. <IMAGE>
Patent GB-2139703-A (GB)
Title: A pressure-shock cushioning device for use in a conduit for liquid
Inventor: BROE MAX
IPC: F16L55/052
Filed: 1984-05-02
Abstract: Pressure shocks in a liquid which flows from a pipe fitting (5) into a pipe (2) are absorbed by an air-pocket (6) formed between the outside of the pipe (2), a closed jacket (3, 4), and a liquid surface (7). The invention is characterised by the provision of air flow throttling means which throttle the air flow in the pocket (6). This obviates the occurrence of strong secondary liquid pressure surges which can be caused by the expansion of the air pocket following compression thereof by the primary liquid pressure surge. The throttle means (9, 10) can at the same time serve as spacers between the liquid flow pipe (2) and the jacket (3) and are preferably so designed that the air flow is throttled more strongly when the air pocket expands than when it is compressed. Several different forms of air flow throttling means are described. <IMAGE>
Patent GB-2139694-A (GB)
Title: Door opening/closing mechanism
Inventor: CAMPBELL DAVID
IPC: F16J13/20
Filed: 1984-05-04
Abstract: A mechanism is provided for opening and closing a door (20) of a cylindrical port in a wall (14) of a shielded enclosure. The mechanism comprises a support frame (40) by which the door (20) is pivotally supported, the support frame (40) being hinged (50) to the wall (14) at one side of the port. At the other side of the port is a rotary cam (74) with a groove (70) to engage a peg (66) on the support frame (40), so that rotation of the cam (74) one way or the other causes the door (20) to open or close. The support frame (40) includes a set screw (98) and a resiliently biassed plunger (94), arranged to urge the door into a plane at an angle to the support frame (40). The groove (70) has an open end to release the peg (66) for further door opening. <IMAGE>
Patent GB-2142136-A (GB)
Title: Heating apparatus including a heat pump
Inventor: PEARSON STEPHEN FORBES
IPC: F24D3/18
Filed: 1984-06-01
Abstract: The flue 7 of an oil-fired boiler 4 supplying water radiators 10 in an office area 2 contains the evaporator 6 of a heat pump 5 supplying a heat exchanger 15 in a factory area 3. A heat exchanger 17 in the heat pump circuit supplies heat to the boiler circuit 12. To defrost the evaporator 6 the heat pump compressor 14 may be switched off and the speed of the evaporator fan 18 reduced. <IMAGE>
Patent GB-2160947-A (GB)
Title: Scaffolding joints
Inventor: YOUNG GEORGE BERNARD ARTHUR
IPC: E04G7/30
Filed: 1984-06-28
Abstract: A scaffolding member (10) comprises a dependent spigot (14) and a wedge (16), both of which are adapted to be inserted within a socket (18) provided on an upright scaffold member (20). The wedge (16) is movable between a lower and operative position (see Fig. 1) and an upper, inoperative and retracted position (see Fig. 2) in which the wedge (16) is supported above the socket (18) and on the upper surface of a transom or ledger member (12) in a direction transverse to the scaffold upright (20). <IMAGE>
Patent GB-2145491-A (GB)
Title: Pipe coupling
Inventor: SLATER BRIAN GEORGE
IPC: F16L19/08
Filed: 1984-08-24
Abstract: A pipe coupling comprises a coupling body 1, a ferrule 5, and a clamping member 4. The ferrule is in the form of a collet and the clamping member has a corresponding internal surface. The collet has means for engaging with corresponding means e.g. a groove 7 on the pipe to be coupled. A shoulder 2 in the coupling body is adapted to engage with the end of the pipe to form a seal. The coupling is less susceptible to incorrect assembly. <IMAGE>
Patent GB-2148075-A (GB)
Title: Transmitter-transponder systems
Inventor: SKOUTAJAN ROBERT
IPC: G06K7/08
Filed: 1984-10-05
Abstract: Two windings and one Hall effect magnetic detector means are provided in each of an IC card transponder Fig. 2 and an interrogator apparatus, Fig. 1. Using winding to winding coupling the interrogator transmitter sends a clock signal and power supply current to the transponder, and transmits a data signal thereto by making use of the coupling between a winding and the magnetic detector means. When the data signal is transmitted from one of the transponder and the interrogator to the other, the transmission from the other to the one is interrupted. <IMAGE>
Patent GB-2168801-A (GB)
Title: Ventilator
Inventor: HUTTON MELVIN JOHN
IPC: E06B7/02
Filed: 1984-12-05
Abstract: Double-glazed window frame assembly comprises frame members (14, 16) and a ventilator (12) incorporated in the assembly. The ventilator includes means (66) which enable the use of double-glazed units having various thicknesses. The ventilator also includes shutter parts (42, 42') having rectangular apertures which may be moved into and out of correspondence with apertures (69), Figure 1, in the adjacent parts of frame members (14, 16). A hood (60) incorporating a flyscreen (56) is provided on the outside of the ventilator. <IMAGE>
Patent GB-2156858-A (GB)
Title: Coating optical fibres with hydrogen-impermeable material
Inventor: EVANS RONALD ALBERT
IPC: C03C25/223
Filed: 1984-12-13
Abstract: An optical fibre is coated with a hydrogen-impermeable material which is either a metal e.g. indium or tin, or a dielectric, e.g. silicon nitride, or possibly carbon by a CVD process as the fibre moves continuously through the deposition zone. The optical fibre may comprise a glass core and a cladding layer made of a glass with a lower refractive index than that of the core, and the coated optical fibre may have a layer of abrasion resistant plastics material on the coating. In the drawing, as illustrated in the figure an optical fibre 6 is positioned along the longitudinal axis of an inner perforated silica tube 1 which is coaxially within an outer silica tube. Feed tubes 3 for the introduction of the different reactive constituents are arranged between the two silica tubes so as to allow the vapours to pass through the perforations in the inner tube 1 into the deposition zone where the optical fibre is positioned. <IMAGE>
Patent GB-2169812-A (GB)
Title: Improvements relating to exercising apparatus
Inventor: SHEPHERD KEITH EDGAR
IPC: A63B21/062
Filed: 1985-01-23
Abstract: Exercising apparatus comprises a main frame 1 providing a seat 3. A cable 7 leads from a bar to be raised or lowered by the arms or legs of the user, to a group of weight members 9 to be lifted. These weight members 9 comprise a closed rigid container with a filling opening allowing water or sand to be poured in to achieve a desired weight, the aperture then being closed by a cap. Each weight member is shaped at the sides to provide recesses 20 to receive vertical guide tubes 10 and 11 and the undersurface of each weight member incorporates a guide slot for receipt of a locating rod which will be interconnected with a yoke 8 to which the cable 7 is attached, the arms of the yoke passing into passageways 15 through each weight member 9. <IMAGE>
Patent GB-2155457-A (GB)
Title: Method of reducing hydrocarbon emissions occurring during iron ore sintering operations
Inventor: WEIDNER RALPH F
IPC: D01F9/145
Filed: 1985-02-05
Abstract: A method is provided for reducing the hydrocarbon content of the gases produced during the agglomeration of fine iron-containing particles by sintering them in the presence of carbonaceous material which comprises contacting a mixture of fine iron-containing particles and carbonaceous materials with an effective amount of a hydrocarbon oxidation catalyst; and heating the mixture in an oxygen containing atmosphere to a temperature sufficient to cause the carbonaceous material to burn and the fine iron-containing particles to fuse and become bonded together to form an agglomerated mass of coarse iron-containing particles.
Patent GB-2173690-A (GB)
Title: Feeding bowl
Inventor: REES ARNOLD EDWARD
IPC: A47G19/10
Filed: 1985-04-18
Abstract: A baby feeding bowl having a dish section (4) and a warmer section (6) into which hot water may be introduced in order to keep food within the dish section (4) warm. The warmer section (6) is emptied and filled through a plug hole (14) in the bottom surface, which is sealed by a plug. A sucker ring 15 may be removably mounted on annular wall 8. <IMAGE>
Patent GB-2158355-A (GB)
Title: Transdermal dosage form
Inventor: SARPOTDAR PRAMOD PURUSHOTTAM
IPC: A61K47/10
Filed: 1985-05-09
Abstract: A pharmaceutical composition and dosage form for the transdermal delivery of a therapeutic agent dispersed in a solvent system comprises a mixture of propylene glycol and glycerine in the ratio of about 1:1 to about 1:5 by weight of each other and if required such other pharmaceutically acceptable solvent or solvents necessary to achieve a solubility of at least 0.5 milligrams/millilitre of the therapeutic agent in the solvent system, the amount of propylene glycol and glycerine being such as to enhance the transdermal penetration of the therapeutic agent. The composition is especially dispersed in a matrix of a non-polymeric gel in a thin flexible form.